JPH0637155U - Container - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a container capable of easily discriminating between an unopened state and a re-sealed state from the appearance and improving the efficiency of the recycling work. [Constitution] A container A is a synthetic resin container body 1 for storing contents, a cylindrical mouth portion 2 formed in a part of the container body 1, and a tip end portion of the mouth portion 2 which can be freely attached to the tip portion. And a cap 3 made of synthetic resin. Further, the cap 3 fitted in the mouth portion 2
Further, a cylindrical external fitting member 4 made of synthetic resin is provided integrally with the mouth portion 2 so as to be fitted externally. The inner peripheral surface of the outer fitting member 4 and the outer peripheral surface of the cap 3 and the outer peripheral surface of the mouth portion 2 located below the cap 3 are engaged with each other to direct the outer fitting member 4 toward the base end portion of the mouth portion 2. The engaging portions 8, 5 and 7 are provided to release the engagement only when they are moved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a container made of synthetic resin in which a mouth portion formed in a container body is sealed by a cap.

[0002]

[Prior art]

 Conventionally, as this type of container, a bottle made of polyethylene terephthalate (hereinafter referred to as PET) for storing soy sauce and the like is known.

As shown in FIG. 9, the bottle 30 can be opened by a lid C. The lid C is made of polyethylene (hereinafter referred to as PE) as a material, and has an inner plug portion 32 fixed to a cylindrical mouth portion 31 formed on the upper portion of the bottle 30, and the inner plug. It is configured by a cap 33 that can be fitted into the portion 32.

The inner plug portion 32 includes a spout 34 that communicates with the mouth 31 of the bottle 30, and a closing portion 35 that closes the spout 34. The closing portion 35 is engraved in an unsealed shape. A breakable score 36 and a grip ring 37 that is gripped by fingers or the like when the score 36 is broken are provided.

Further, the inner plug portion 32 is provided so as to be difficult to remove from the bottle 30 by the engaging portion 39 that engages with the convex portion 38 provided on the outer periphery of the mouth portion 31 of the bottle 30. After opening the closure part 35, it is re-closed by fitting the cap 33 into the spout 34.

By the way, in recent years, it has been performed to recycle and reuse the used bottle 30. In such recycling, in order to prevent the lid C from interfering with the cleaning of the bottle 30, the PET that is the material of the bottle 30 and the PE that is the material of the lid C are mixed. To avoid this, it is necessary to separate the bottle 30 and the lid C.

However, since the inner stopper portion 32 is fixed to the bottle 30, the inner stopper portion 32 is cut or stripped in order to separate the inner stopper portion 32 from the bottle 30. There is an inconvenience that these operations are troublesome.

Therefore, although not shown in the drawings, the inner plug portion 32 is detachably provided by, for example, reducing the engagement state between the mouth portion 31 of the bottle 30 and the engaging portion 39 of the inner plug portion 32. It is possible to make it easy to remove.

However, if the inner plug portion 32 is detachable from the bottle 30, the entire lid C can be easily removed and opened without opening the closing portion 35, which may result in inadvertent opening. Moreover, in the state where the cap 33 is capped on the spout 34, it is difficult to judge from the appearance that the closed portion 35 is once opened and then resealed, and the closed portion 35 is unopened. There is an inconvenience.

Further, in order to avoid that PET, which is the material of the bottle 30, and PE, which is the material of the lid C, are mixed when the bottle 30 is regenerated, the inner plug portion 32 is made of the same material as the bottle 30. It is conceivable to form by PET.

Therefore, when the bottle 30 is reused, if only the cap 33 that can be easily attached and detached is separated, mixing of different materials can be avoided even when the inner plug portion 32 is fixed. In addition, since it is not necessary to perform the cutting work and the peeling work of the inner plug portion 32, the efficiency of the reworking work can be improved.

However, although a material having a complicated shape such as the inner plug portion 32 is usually formed by injection molding, PET as a material thereof is generally formed by injection molding in a complicated shape. However, there is an inconvenience that it is difficult to form the inner plug portion 32 using PET as a material.

[0013]

[Problems to be solved by the device]

 By eliminating such inconvenience, the present invention provides a container capable of easily discriminating between an unopened state and a re-sealed state from the appearance, and improving the efficiency of the reproducing operation. The purpose is to

[0014]

[Means for Solving the Problems]

 In order to achieve such an object, the present invention provides a container body made of synthetic resin for storing contents, a tubular mouth portion formed in the container body, and a tip end portion of the mouth portion which can be freely attached. In a container provided with a synthetic resin cap, a synthetic resin tubular external fitting member that can be externally fitted integrally with the mouth portion and the cap capped on the mouth portion is provided. When the outer fitting member is engaged with the inner peripheral surface, the outer peripheral surface of the cap, and the outer peripheral surface of the mouth portion located below the cap, and the outer fitting member is moved toward the base end portion of the mouth portion. Only the engaging portion for releasing the engagement is provided.

Further, it is preferable that both the container body and the outer fitting member are made of the same material, and particularly the same material is preferably polyethylene terephthalate.

[0016] Furthermore, a threaded portion that can be screwed with each other is provided on the inner circumferential surface of the outer fitting member, the outer circumferential surface of the cap, and the outer circumferential surface of the mouth portion below the cap, and one screw portion is provided. A recess is provided in the thread groove of the other screw, and a protrusion having a shape corresponding to the recess is provided on the thread of the other screw portion, and the recess guides the protrusion when the outer fitting member is rotated in the screwing direction. A guide surface and a locking surface that locks the convex portion so that the outer fitting member cannot be removed.

Further, annular protrusions that can be engaged and disengaged with each other are provided on the inner peripheral surface of the outer fitting member, the outer peripheral surface of the cap, and the outer peripheral surface of the mouth portion below the cap. An engaging surface that disengages each other when the outer fitting member is moved toward the base end of the mouth, and a locking surface that irremovably abuts and locks the outer fitting member. I don't mind.

[0018]

[Action]

 According to the present invention, since the outer fitting member of the unopened container is attached to the outer peripheral surface of the cap and the outer peripheral surface of the mouth portion, the cap is connected to the mouth portion by the outer fitting member. Then, it is fixed, and the closed state of the mouth portion by the cap is surely maintained. Then, when the mouth portion is opened, the cap can be freely attached and detached by moving the outer fitting member toward the base end portion of the mouth portion to release the engagement with the cap. At this time, the outer fitting member and the outer peripheral surface of the cap and the outer peripheral surface of the mouth portion are provided with engaging portions that are disengaged only when moved toward the base end portion of the mouth portion. Since the container cannot be moved to the tip end side of the mouth after being opened, the unopened state and the resealed state can be easily discriminated from the appearance even when resealed.

Further, both the container body and the outer fitting member are made of the same material, and in particular, by forming the material as polyethylene terephthalate, only the easily attachable / detachable cap is separated from the container body, and the outer fitting member is fitted. It is possible to prevent the mixture of different materials and reuse the container body without removing the members.

According to the first aspect of the engaging portion, the outer fitting member moves toward the base end portion of the mouth portion by rotating in the screwing direction. Then, a recess is provided in the thread groove of one screw portion, and a protrusion having a shape corresponding to the recess is provided in the screw thread of the other screw portion. By providing a guide surface that guides the convex portion when rotated and a locking surface that locks the convex portion so that the outer fitting member cannot be removed, the outer fitting member rotates in the screwing direction. Only when it is open, it becomes possible to move toward the base end of the mouth.

According to the second aspect of the engaging portion, the outer fitting member moves by being pushed down toward the base end portion of the mouth portion. The projections are engaged with each other so as to disengage each other when the outer fitting member is moved toward the base end of the mouth portion, and the outer fitting member is irremovably abutted against each other and locked. The outer fitting member can be moved only when it is pushed down toward the base end of the mouth.

[0022]

【Example】

 An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an explanatory longitudinal sectional view showing a main part of a container of a first embodiment of the present invention, FIG. 2 is an explanatory view of an outer fitting member in the first embodiment, and FIG. 3 is a first embodiment. An explanatory view of a cap in an example, FIG. 4 is an explanatory view showing an opened state of the container of FIG. 1, FIG. 5 is an explanatory view of a cap of another example, and FIG. 6 is a view of a container of the second embodiment of the present invention. FIG. 7 is an explanatory longitudinal sectional view showing a main part, FIG. 7 is an explanatory view showing an outer fitting member in the second embodiment, and FIG. 8 is an explanatory view of a cap in the second embodiment.

The containers A and B of the present invention shown in each of the following embodiments are configured so that they can be resealed after opening the mouth 2 of the PET container body 1 for storing soy sauce and the like. It is a thing.

First, a first embodiment of the present invention will be described.

In FIGS. 1 to 4, 1 is a PET container body having a cylindrical mouth portion 2 formed on the upper portion, and 3 is a PE cap that can be attached to the tip of the mouth portion 2 of the container body 1 Reference numeral 4 denotes a cylindrical PET external fitting member attached to the cap 3 and the mouth portion 2 of the container body 1.

Explaining each of the above parts in detail, a screw part 5 having screw threads protruding in a spiral shape is formed on the entire outer peripheral surface of the cap 3. Further, a locking portion 6 is formed on a part of the outer peripheral surface of the mouth portion 2 so as to project over the entire peripheral surface thereof, and the screw portion 5 of the cap 3 is provided on the entire outer peripheral surface of the locking portion 6. The same screw part 7 is formed. Then, on the inner peripheral surface of the outer fitting member 4, there is formed a screw portion 8 formed of a spiral screw groove that can be screwed into the screw portions 5 and 7.

Further, as shown in FIG. 2, the screw portion 8 of the outer fitting member 4 is provided with a plurality of recesses 9 along the screw groove. Each of the recesses 9 includes an inclined surface 10 that inclines toward the same direction, and a locking surface 11 that is formed flat from the end of the inclined surface 10 toward the bottom of the recess 9. On the other hand, the screw portion 5 of the cap 3 is provided with a plurality of protrusions 12 along the top of the screw thread, as shown in FIG. Each of the convex portions 12 has a shape corresponding to the concave portion 9, and is formed in a flat surface from the end of the inclined surface 13 and the end of the inclined surface 13 toward the top of the screw thread. And a stop face 14. Further, although not shown in detail, as shown in FIG. 1, a screw portion 7 on the outer peripheral surface of a part of the mouth portion 2 is formed similarly to the screw portion 5 of the cap 3.

As shown in FIG. 1, when the screw portion 8 of the external fitting member 4 is screwed to the screw portions 5 and 7 of the cap 3 and the mouth portion 2, respectively, the recess 9 and the The convex portions 12 and 5 are engaged with each other and locked. That is, the inclined surface 10 of the concave portion 9 and the inclined surface 13 of the convex portion 12 are in contact with each other, and at the same time, the locking surface 11 of the concave portion 9 and the locking surface 14 of the convex portion 12 are in contact with each other. From this state, when the outer fitting member 4 is rotated clockwise in the drawing, the inclined surface 10 of the concave portion 9 and the inclined surface 13 of the convex portion 12 are elastically deformed by mutual alignment, and Since the locked state is released, the outer fitting member 4 can be moved downward toward the base end portion of the mouth 2 while rotating, as shown in FIG. On the other hand, when the outer fitting member 4 is rotated counterclockwise in the drawing, the locking surface 11 of the concave portion 9 and the locking surface 14 of the convex portion 12 come into contact with each other and are securely locked. Therefore, the locked state of each other is not released.

As a result, in the container A, as shown in FIG. 1, in the unopened state, the concave portion 9 and the convex portion 12 are engaged with each other so that the outer fitting member 4 cannot be removed. The cap 3 is connected and fixed to the mouth 2 by the outer fitting member 4, and the closed state of the mouth 2 by the cap 3 can be reliably maintained. When the container A is opened, the outer fitting member 4 is rotated to move downward toward the base end portion of the mouth portion 2 so that the concave portion 9 and the convex portion 12 are engaged with each other. 4 is released, and as shown in FIG. 4, the engagement of the outer fitting member 4 with the cap 3 by the outer fitting member 4 is released, and the cap 3 can be freely attached and detached. At this time, the outer fitting member 4 is held at the container body 1 in a fixed state by having its upper end side locked by the locking portion 6 of the mouth portion 2 and its lower end edge abutting the shoulder portion 1a of the container body 1. To be done.

Then, the mouth portion 2 of the container body 1 is resealed by fitting the cap 3, but since the outer fitting member 4 cannot rotate in the removing direction, the container body 1 is locked. It is held by the portion 6 and the shoulder portion 1a. Accordingly, by checking the position of the outer fitting member 4, the container A can be easily judged from the appearance whether it is in the unopened state or the resealed state.

Moreover, since the outer fitting member 4 has an extremely simple structure as described above, it is easy to mold it by PET. Therefore, both the container body 1 and the outer fitting member 4 should be formed of PET. Thus, when the container body 1 is regenerated with the outer fitting member 4 held on the container body 1, it is possible to prevent mixing of different materials by only separating the cap 3 made of PE.

Further, as shown in FIG. 5, the cap 3 may be provided with a support ring 16 connected by a hinge portion 15, and the support ring 16 may be supported by the mouth portion 2 of the container body 1. At this time, in the above embodiment, the screw portion 5 provided on the outer peripheral surface of the cap 3 is provided on the outer peripheral surface of the supporting ring 16. By doing so, when the outer fitting member 4 is moved to the base end portion of the mouth portion 2, the cap 3 becomes swingable via the hinge portion 15, and the same effect as above can be obtained.

Next, a second embodiment of the present invention will be described.

In the container B of the second embodiment, those described in the first embodiment are designated by the same reference numerals in the drawings, and detailed description thereof will be omitted.

In FIGS. 6 to 8, 1 is a PET container body having a mouth portion 2, 3 is a PE cap, 4 is a PET attached to the cap 3 and the mouth portion 2 of the container body 1. It is an external fitting material.

A plurality of annular protrusions 18 arranged parallel to each other are formed on the entire outer peripheral surface of the cap 3. A plurality of protrusions 19 similar to the protrusions 18 of the cap 3 are formed on the entire outer peripheral surface of a part of the mouth 2. Further, on the inner peripheral surface of the outer fitting member 4, there are formed protrusions 20 that engage with the protrusions 18 and 19, respectively.

As shown in FIG. 7, the protrusions 20 of the outer fitting member 4 are inclined from the end of the inclined surface 21 to the inner surface of the outer fitting member 4 and are inclined downward in the diameter reducing direction. And a locking surface 22 formed horizontally. On the other hand, as shown in FIG. 8, the protrusions 18 of the cap 3 have a shape corresponding to the protrusions 20 of the outer fitting member 4, and each of them has an inclined surface 23 which is inclined downward in the bulging direction. The locking surface 24 is formed horizontally from the end of the inclined surface 23 toward the outer surface of the cap 3. Further, although not shown in detail, as shown in FIG. 6, a protrusion 19 having the same shape as the protrusion 18 of the cap 3 is also formed on a part of the outer peripheral surface of the mouth 2.

As shown in FIG. 6, when the projection 20 of the outer fitting member 4 is engaged with the projections 18 and 19 of the cap 3 and the mouth portion 2, respectively, the cap 3 and the mouth portion 2 The respective inclined surfaces 23 of the projections 18 and 19 of the outer fitting member 4 and the inclined surfaces 21 of the projections 20 of the outer fitting member 4 come into contact with each other, and at the same time, the locking surfaces 24 of the projections 18 and 19 of the cap 3 and the mouth portion 2 and the locking surface 24. The engaging surface 22 of the protrusion 20 of the outer fitting member 4 is in contact with the engaging surface 22. From this state, when the outer fitting member 4 is pushed down in the drawing, the inclined surfaces 23 and 21 of the protrusions 18, 19 and 20 are guided to each other and elastically deformed, so that they are locked to each other. Since the state is released, the outer fitting member 4 can be moved downward toward the base end of the mouth 2. On the other hand, when the outer fitting member 4 is pulled upward in the drawing, the locking surfaces 24 and 22 of the projections 18, 19 and 20 are reliably locked while maintaining a contact state with each other. Therefore, the locked state of each other is not released.

As a result, in the container B, as shown in FIG. 6, the outer fitting member 4 is in a non-removable state in the unopened state, and the cap 3 is connected to the mouth portion 2 by the outer fitting member 4. It is fixed by being fixed, and the closed state of the mouth portion 2 by the cap 3 can be reliably maintained. When the container B is opened, the outer fitting member 4 is pushed downward toward the base end portion of the mouth 2 to move the container B, thereby releasing the locking of the protrusions 18, 19, 20. Since the outer fitting member 4 is positioned at the base end portion of the mouth portion 2, the engagement of the outer fitting member 4 with the cap 3 is released, and the cap 3 can be freely attached and detached. Then, the mouth portion 2 of the container body 1 is resealed by capping the cap 3, but the outer fitting member 4 is immovable in the detaching direction, so that it is located at the base end portion of the mouth portion 2. It will be retained in the state it was in. Accordingly, by confirming the position of the outer fitting member 4, the container B can easily determine from the appearance whether it is in the unopened state or the resealed state.

Further, as in the first embodiment described above, the outer fitting member 4 has an extremely simple structure, so that it is easy to mold by PET, and therefore, the container body 1 and the outer fitting member 4 are combined. By forming the container by using PET, when the container body 1 is regenerated in a state where the outer fitting member 4 is held in the container body 1, only the PE cap 3 is separated to prevent mixing of different materials. can do.

Also in the second embodiment, for example, as shown in FIG. 5, the cap 3 is provided with a support ring 16 connected by a hinge portion 15, and the support ring 16 is provided in the mouth of the container body 1. It may be supported by the part 2. In this case, although not shown, the cap 3 is replaced with a protrusion similar to the protrusion 18 on the outer peripheral surface of the support ring 16. By doing so, when the outer fitting member 4 is moved to the base end portion of the mouth portion 2, the cap 3 becomes swingable via the hinge portion 15, and the same effect as above can be obtained.

[0043]

[Effect of device]

 As is clear from the above, the container of the present invention is provided with the outer fitting member so that the outer fitting member locks the cap and the outer peripheral surface of the mouth portion in a connected state to close the mouth portion. The closed state can be reliably maintained. The engaging portion releases the engagement with the cap only when the outer fitting member is moved toward the base end portion of the mouth portion. By moving the cap toward the base end, the cap can be freely attached and detached. Moreover, since the outer fitting member moved to the base end portion of the mouth portion by the engaging portion cannot move toward the tip end portion of the mouth portion, it remains unopened even when resealed. It is possible to easily distinguish the resealed state from the appearance.

Further, both the container body and the outer fitting member are made of the same material, and particularly, by forming the material as polyethylene terephthalate, only the cap which can be easily attached / detached is separated from the mouth portion. The container body can be regenerated by preventing the mixing of different materials without removing the outer fitting member.

Further, a threaded portion that can be screwed into each other is provided on the inner peripheral surface of the outer fitting member and the outer peripheral surface of the cap and the outer peripheral surface of the mouth portion, and a recess is formed in the thread groove of one of the threaded portions. And a convex portion having a shape corresponding to the concave portion is provided on the thread of the other screw portion. The concave portion includes a guide surface that guides the convex portion when the external fitting member is rotated in the screwing direction, and a locking surface that locks the convex portion so that the external fitting member cannot be removed. The outer fitting member can move toward the base end of the mouth only when it is rotated in the screwing direction, and when the container is opened, the outer fitting member does not move to the base end of the mouth. The cap can be freely attached and detached by moving it toward. Moreover, since the external fitting member that has been moved to the base end of the mouth cannot move toward the tip of the mouth, it remains unopened or resealed even when resealed. Can be easily distinguished from the appearance.

Further, protrusions that engage with each other are provided on the inner peripheral surface of the outer fitting member and the outer peripheral surface of the cap and the outer peripheral surface of the mouth portion, and the outer fitting member is attached to the base of the mouth portion on each protrusion. By providing an engagement surface that disengages each other when they are moved toward the end and a locking surface that irremovably abuts and locks the outer fitting member, the outer fitting member is It can move only when it is pushed down toward the base end of the part. Then, when opening the mouth portion, the cap can be freely attached and detached by moving the outer fitting member toward the base end portion of the mouth portion. Moreover, since the external fitting member that has been moved to the base end of the mouth cannot move toward the tip of the mouth, it cannot be opened or resealed even if it is resealed. Can be easily discriminated from the appearance.

Therefore, according to the present invention, it is possible to easily discriminate the unopened state and the re-sealed state from the appearance, and to provide the container capable of improving the efficiency of the regenerating work. be able to.

[Brief description of drawings]

FIG. 1 is an explanatory longitudinal sectional view showing a main part of a container according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of an outer fitting member according to the first embodiment.

FIG. 3 is an explanatory diagram of a cap in the first embodiment.

4 is an explanatory view showing an opened state of the container of FIG. 1. FIG.

FIG. 5 is an explanatory view of a cap of another example.

FIG. 6 is an explanatory longitudinal sectional view showing a main part of a container according to a second embodiment of the present invention.

FIG. 7 is an explanatory view showing an outer fitting member in the second embodiment.

FIG. 8 is an explanatory view of a cap in the second embodiment.

FIG. 9 is an explanatory vertical sectional view showing a main part of a conventional container.

[Explanation of symbols]

A, B ... Container, 1 ... Container body, 2 ... Mouth portion, 3 ... Cap, 4 ... External fitting member, 5, 7, 8 ... Screw portion, 9 ... Recessed portion, 1
0, 13 ... Inclined surface (guide surface), 12 ... Convex portion, 11, 14
... locking surface, 18, 19, 20 ... protrusions 21, 23 ... inclined surface (engaging surface), 22, 24 ... locking surface.

Claims (5)

[Scope of utility model registration request] 1. A synthetic resin container body for storing contents, a cylindrical mouth portion formed in the container body, and a synthetic resin cap that can be attached to the tip of the mouth portion. In the container provided, a cylindrical external fitting member made of synthetic resin, which can be externally fitted integrally with the mouth portion and the cap capped on the mouth portion, is provided.
The inner peripheral surface of the outer fitting member, the outer peripheral surface of the cap, and the outer peripheral surface of the mouth portion at a lower position of the cap are engaged with each other to direct the outer fitting member toward the base end portion of the mouth portion. A container provided with an engaging portion for releasing the engagement only when the container is moved. 2. The container according to claim 1, wherein both the container body and the external fitting member are made of the same material. 3. The container according to claim 2, wherein the same material is polyethylene terephthalate. 4. An inner peripheral surface of the outer fitting member, an outer peripheral surface of the cap, and an outer peripheral surface of the mouth portion at a lower position of the cap are provided with screw portions which can be screwed to each other, and one screw portion. A recess is provided in the thread groove of the other thread, and a projection having a shape corresponding to the recess is provided in the thread of the other thread portion, and the recess guides the projection when the outer fitting member is rotated in the screwing direction. The container according to claim 1, further comprising: a guide surface that locks the external fitting member and a locking surface that locks the convex portion in a non-removable manner. 5. An annular protrusion that is engageable with and disengageable from each other is provided on the inner peripheral surface of the outer fitting member, the outer peripheral surface of the cap, and the outer peripheral surface of the mouth portion located below the cap. An engaging surface that disengages from each other when the outer fitting member is moved toward the base end portion of the mouth portion, and a locking surface that irremovably abuts and locks the outer fitting member. The container according to claim 1, wherein: